Included in most of our internal filters range is a venturi aeration nozzle and it is supplied help create bubbles and increase oxygen levels of returning water.
Note; You can only either use the spray bar or Venturi aeration nozzle, not both together.
As water is pumped back into the tank, it can also be aerated by a venturi pipe. This accelerates the water flow and draws in a stream of air from above the surface though the black nozzle which can be opened and closed to increase of decrease the bubbles.
A venturi is a simple device consisting of a plastic tube with a control valve at the top. When a flow of water is applied to one end of the tube, though the filtration pump, it creates a vacuum sucking air through it. The air mixes with the outlet flow of water from the filter and passes into the aquarium. A venturi is simply a device designed to oxygenate a flow of water.
Oxygenating the water is important because:
- Fish need oxygen to breathe (fish extract about 80 percent of the oxygen from the water that passes over their gills)
- Plants need oxygen at night for cellular respiration and to help photosynthesize.
- Beneficial bacteria need oxygen to break down (oxygenate) waste.